Chark (hip) remained sidelined at Thursday's practice, Daniel Popper of The Athletic reports.
Chark came up limping in practice on Aug. 19 and has been dealing with the injury ever since. Back-to-back DNPs to open the practice week aren't a good sign for the veteran wideout's Week 1 availability against the Raiders, but Chark has one more day of practice to get out there ahead of Sunday. If Chark is unable to play, Joshua Palmer, Ladd McConkey and Quentin Johnston would likely be the Chargers' three-wide set versus Las Vegas.